package Demo;

public class Test6 {
    public static void main(String[] args) {
            Thread t = new Thread( () -> {
                while (true) {
                    System.out.println("hello thread");
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        throw new RuntimeException(e);
                    }
                }
            });
            System.out.println("是否存活:" + t.isAlive());
            t.start();
            System.out.println("是否存活:" + t.isAlive());
            for (int i = 0; i < 3; i++) {
                System.out.println("hello main");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }
    }
}
